Storen is expected to make a complete recovery and return to action sometime before the All-Star break. General manager Mike Rizzo wasn't available for comment Wednesday.
Storen had a simulated game on Sunday in Florida and experienced pain soon thereafter. At first, manager Davey Johnson wasn't optimistic about when the team would see Storen on the mound again.
Prior to a simulated game, the last time Storen pitched was in early March. At that time, the team announced that he had "typical arm soreness." By the end of Spring Training, the team announced that he had inflammation in the elbow and was going on the disabled list, but would be back by the middle of April.
Storen would later see Dr. James Andrews before the team decided that Storen would have minor surgery.
With Storen out for a while, it means that Brad Lidge and Henry Rodriguez will split the closer role. Both players have one save entering Thursday's action.